阅读理解。 Can dolphins talk? Maybe they can't talk with words, but they talk with sounds. Dolphins travel in a group.  We  call  a  group  of  fish  a  'school'. They don't study but they travel together. Dolphins are mammals, not fish, but they swim together in a school. Dolphins talk to other dolphins in the school. They give information. They tell when they are happy or sad or afraid. They say welcome when  a  dolphin  comes  back to the school. They talk when they play. They make a few sounds above  water. They make many more sounds  under  water. People can't hear these sounds because they are very high.   Scientists make tapes of the  sounds  and  study .them, Sometimes people catch a dolphin for a large aquarium(水族馆). People watch the dolphins in a show. Dolphins don't like to  be  away from  their school. In  the aquarium they are sad and lonely.  There are many stories about dolphins.  They  can help people.  Sometimes  they save  somebody's  life.  Dolphin meat is good but people don't like to kill them. They say that dolphins bring good luck. Many people believe this. 1. Dolphins can talk with _________. A. sounds B. words C. language D. action 2. Dolphins________ be in their school. A. don't like to B. like to C. liking D. likes 3. Dolphins always bring ___________. A. sadness B. wishes C. bad luck D. good luck 4. Dolphins make ___________ sounds above water. A. more B. many   . C. a few D. much 5.Which of the following is TRUE? A. Dolphin meat is good, so people like to kill them. B. Sometimes dolphins save somebody's life. C. Dolphins make a few sounds under water. D. People can hear these sounds.from under water.